Splash resistance testing

One way to solve this problem, and thereby control emissions directly from the start, is to use a sensor based on a material more resistant to thermal shock as a cold-start sensor [128]. SiC, as the second hardest material in existence only surpassed by diamond, is such a material and has therefore been tested for its suitability as a cold-start sensor. The water-splash resistance of SiC is still not verified because these experiments are complicated to perform in a laboratory engine test bench. 

From a consideration of Table 3.10, a copper-phosphorus steel might be chosen for its resistance to corrosion in the critical tidal and splash zone. However, the variation of corrosion resistance is much greater than the difference between various alloy steels so it is improbable that low-alloy steels will corrode more slowly than mild steel in most practical environments. This conclusion is supported by Forgeson etal. who concluded from extensive tests in fresh and salt waters of the Panama Canal Zone that Proprietary low-alloy steels were not in general more resistant to underwater corrosion than the mild unalloyed carbon steel . ... 

High-temperature coking resistance is checked by the panel coker test where an aluminium plate, held at temperatures ranging from 275 to 350°C, is splashed with lubricant and the deposited coke is weighed and rated. This procedure has many variations including methods to measure the effect of the oxidising effect of fuel oil contamination on lubricant stability. 

Field tests in the Florida Keys showed that the anodes retained physical integrity for at least 4.5 years. Laboratory test indicated that concrete resistivity does not represent a main limiting factor in performance of such anodes and that periodic water contact (as encountered in the splash/evaporation zone of marine bridge substructures) is actually necessary for long-term anode performance. This low-cost method is a competitive alternative to impressed current cathodic protection systems and a significant improvement over gunite repairs. SHRP-S-405, 10... 

The corrosion behavior of stainless steels in outdoor exposure tests near the shore in a marine atmosphere is also described in DIN 81249, part 4 (1997). The information given relates to a distance of 25 m from the waterline outside the splash line. Table 1-10 lists the corrosion rate and susceptibility to pitting or crevice corrosion. CrNi steels containing molybdenum are passive and have good corrosion resistance. 

Enviroguard s Chemsplash 1 sets the standard in incidental accidental chemical splash protection. It is tested for chemical penetration and permeation resistance by exposure to accidental liquid splash to a specific list of industrial chemicals. 

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